Fort Cobb, OK frost dates
Last spring frostApr 5median date
First fall frostNov 3median date
Growing season212 daysfrost-free
Hardiness zone7bZone 7b
How Fort Cobb compares
- In 8 years out of 10, the last spring frost in Fort Cobb falls between March 17 and April 23, a 37-day window. The first fall frost falls between October 19 and November 16.
- The median last frost is 1 day later than the Oklahoma median of Apr 4.
- Its 212-day growing season is longer than 52% of the 582 Oklahoma places with a regular frost season (state median 211 days).
- The last frost is typical for zone 7b, where the median is Apr 5.
- The weather station records an average of 84 nights a year at or below 32°F.
- Compared with Lawton, OK, 56 km away, the last frost here is 10 days later than there and the growing season is 14 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 17 |
| 50% (median) | April 5 |
| 10% (safe for tender plants) | April 23 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 19 |
| 50% (median) | November 3 |
| 90% (late) | November 16 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Fort Cobb, OK
Fort Cobb, OK frost dates — last frost Apr 5, first frost Nov 3, zone 7b. whenisthelastfrost.com
Crop
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Start indoors: Jan 11 to Jan 25Transplant outside: Mar 8 to Mar 22
Start indoors: Jan 25 to Feb 8Transplant outside: Apr 19 to May 3
Start indoors: Jan 25 to Feb 8Transplant outside: Apr 19 to May 3
Start indoors: Feb 8 to Feb 22Transplant outside: Apr 12 to Apr 26
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 15 to Mar 29Sow outdoors: Mar 8 to Apr 12Plant for fall: Sep 8 to Oct 6
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 8 to Mar 22Sow outdoors: Mar 8 to Mar 22Plant for fall: Aug 25 to Sep 15
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 22 to Apr 5Plant for fall: Jul 28 to Aug 18
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 15 to Mar 29Plant for fall: Jul 28 to Aug 18
Start indoors: Feb 8 to Feb 22Transplant outside: Mar 22 to Apr 5Plant for fall: Jul 28 to Aug 18
Start indoors: Feb 22 to Mar 8Transplant outside: Apr 26 to May 10Sow outdoors: Apr 26 to May 10
Start indoors: Feb 22 to Mar 8Transplant outside: Apr 12 to Apr 26
Sow outdoors: Feb 22 to Mar 15Plant for fall: Aug 11 to Sep 1
Sow outdoors: Feb 22 to Mar 15Plant for fall: Sep 8 to Sep 29
Sow outdoors: Mar 1 to Apr 12Plant for fall: Sep 22 to Oct 13
Start indoors: Mar 8 to Mar 15Transplant outside: Apr 19 to Apr 26Sow outdoors: Apr 12 to Apr 26Plant for fall: Aug 18 to Sep 1
Start indoors: Mar 8 to Mar 15Sow outdoors: Apr 12 to Apr 26Plant for fall: Aug 25 to Sep 8
Start indoors: Mar 8 to Mar 15Sow outdoors: Apr 12 to Apr 26
Start indoors: Mar 8 to Mar 15Transplant outside: Apr 19 to May 3
Sow outdoors: Mar 15 to Apr 12Plant for fall: Aug 11 to Aug 25
Sow outdoors: Mar 15 to Apr 12Plant for fall: Aug 25 to Sep 8
Sow outdoors: Mar 15 to Apr 5
Sow outdoors: Mar 22 to Apr 19Plant for fall: Aug 25 to Sep 8
Sow outdoors: Mar 22 to Apr 12Plant for fall: Sep 8 to Sep 29
Sow outdoors: Apr 12 to May 3Plant for fall: Aug 18 to Sep 1
Sow outdoors: Apr 12 to Apr 26
Transplant outside: Apr 19 to May 10
Plant for fall: Oct 20 to Nov 24
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Fort Cobb, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 11 – Jan 25 | Mar 8 – Mar 22 | — | — |
| Peppers | Jan 25 – Feb 8 | Apr 19 – May 3 | — | — |
| Eggplant | Jan 25 – Feb 8 | Apr 19 – May 3 | — | — |
| Tomatoes | Feb 8 – Feb 22 | Apr 12 – Apr 26 | — | — |
| Lettuce | Feb 8 – Feb 22 | Mar 15 – Mar 29 | Mar 8 – Apr 12 | Sep 8 – Oct 6 |
| Kale | Feb 8 – Feb 22 | Mar 8 – Mar 22 | Mar 8 – Mar 22 | Aug 25 – Sep 15 |
| Broccoli | Feb 8 – Feb 22 | Mar 22 – Apr 5 | — | Jul 28 – Aug 18 |
| Cabbage | Feb 8 – Feb 22 | Mar 15 – Mar 29 | — | Jul 28 – Aug 18 |
| Cauliflower | Feb 8 – Feb 22 | Mar 22 – Apr 5 | — | Jul 28 – Aug 18 |
| Okra | Feb 22 – Mar 8 | Apr 26 – May 10 | Apr 26 – May 10 | — |
| Basil | Feb 22 – Mar 8 | Apr 12 – Apr 26 | — | — |
| Peas | — | — | Feb 22 – Mar 15 | Aug 11 – Sep 1 |
| Spinach | — | — | Feb 22 – Mar 15 | Sep 8 – Sep 29 |
| Radishes | — | — | Mar 1 – Apr 12 | Sep 22 – Oct 13 |
| Cucumbers | Mar 8 – Mar 15 | Apr 19 – Apr 26 | Apr 12 – Apr 26 | Aug 18 – Sep 1 |
| Zucchini & Summer Squash | Mar 8 – Mar 15 | — | Apr 12 – Apr 26 | Aug 25 – Sep 8 |
| Winter Squash & Pumpkins | Mar 8 – Mar 15 | — | Apr 12 – Apr 26 | — |
| Melons & Watermelon | Mar 8 – Mar 15 | Apr 19 – May 3 | — | — |
| Carrots | — | — | Mar 15 – Apr 12 | Aug 11 – Aug 25 |
| Beets | — | — | Mar 15 – Apr 12 | Aug 25 – Sep 8 |
| Potatoes | — | — | Mar 15 – Apr 5 | — |
| Swiss Chard | — | — | Mar 22 – Apr 19 | Aug 25 – Sep 8 |
| Cilantro | — | — | Mar 22 – Apr 12 | Sep 8 – Sep 29 |
| Green Beans | — | — | Apr 12 – May 3 | Aug 18 – Sep 1 |
| Sweet Corn | — | — | Apr 12 – Apr 26 | — |
| Sweet Potatoes | — | Apr 19 – May 10 | — | — |
| Garlic | — | — | — | Oct 20 – Nov 24 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Fort Cobb 4nnw Mesonet, OK weather station, 5 km away (elevation 1,385 ft (422 m)).
Frost dates near Fort Cobb
- Albert Apr 5 · Nov 3
- Carnegie Apr 6 · Oct 31
- Gracemont Apr 8 · Oct 30
- Anadarko Apr 8 · Oct 30
- Eakly Apr 6 · Oct 31
- Binger Apr 5 · Nov 3
- Apache Apr 3 · Nov 3
- Mountain View Apr 6 · Oct 31
- Lookeba Apr 5 · Nov 1
- Cyril Apr 3 · Nov 3
Frequently asked questions
When is the last frost in Fort Cobb, OK?
The median last spring frost in Fort Cobb, OK is April 5. There is still about a 10% chance of frost after April 23, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Fort Cobb, OK?
The median first fall frost is November 3, with about a 10% chance of frost before October 19.
How long is the growing season in Fort Cobb, OK?
About 212 days between the median last spring frost and first fall frost.
What planting zone is Fort Cobb, OK?
Fort Cobb, OK is in USDA hardiness zone 7b.